CN103708377A - Adjustable hydraulic jack with sliding block locking structure - Google Patents
Adjustable hydraulic jack with sliding block locking structure Download PDFInfo
- Publication number
- CN103708377A CN103708377A CN201310716654.XA CN201310716654A CN103708377A CN 103708377 A CN103708377 A CN 103708377A CN 201310716654 A CN201310716654 A CN 201310716654A CN 103708377 A CN103708377 A CN 103708377A
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- Prior art keywords
- bracket
- slide block
- side plate
- hydraulic jack
- forearm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F5/00—Mobile jacks of the garage type mounted on wheels or rollers
- B66F5/04—Mobile jacks of the garage type mounted on wheels or rollers with fluid-pressure-operated lifting gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/36—Load-engaging elements
- B66F3/38—Load-engaging elements adjustable relative to piston
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Jib Cranes (AREA)
- Shovels (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses an adjustable hydraulic jack with the sliding block locking structure, and belongs to the technical field of jacking devices. The adjustable hydraulic jack comprises a machine frame, a hydraulic component, a boom component and a pressing hand. The boom component comprises a bracket, a front arm and a rear arm, the bracket comprises a handle, a bracket left side plate, a bracket right side plate and a bracket fixing pin, the bracket is connected to one end of the front arm, the other end of the front arm is connected to one end of the rear arm, and the other end of the rear arm is connected to the machine frame. The adjustable hydraulic jack is characterized in that a side plate left insertion opening is formed in the bottom of the bracket left side plate in the height direction, and a side plate right insertion opening is formed in the bottom of the bracket right side plate in the height direction; a left sliding groove and a right sliding groove are formed in the left side surface and the right side surface of the front arm respectively, and a spring fixing pin is fixed to the upper end portion of the front arm in the height direction; a sliding block locking device is arranged between the bracket and the front arm and comprises a left sliding block, a right sliding block, a spring and at least one hinge pin. The adjustable hydraulic jack is simple in structure, convenient to install, low in cost, easy and fast to operate, safe and long in service life.
Description
Technical field
The invention belongs to lifting device technical field, be specifically related to a kind of adjustable hydraulic jack with slide block locking structure, is the improvement to the hoisting arm structure on existing horizontal hydraulic jack.
Background technology
Common horizontal hydraulic jack in the market, mainly comprise frame, hydraulic unit, crane arm parts, connecting rod and press hand, described crane arm parts comprise crane arm and are located at the bracket on crane arm, one end pivotal joint of described connecting rod in frame, the other end pivotal joint of connecting rod is on the bracket of crane arm parts.When lifting, by repeatedly pressing down, press hand, by hydraulic unit, promote crane arm parts and up kick up, final by the bracket on crane arm by weight jacking.The problem that said structure exists is: for the horizontal hydraulic jack of same specification, when one timing of the parameters such as oil pressure, stroke, because the length of crane arm and connecting rod all cannot regulate, its lift height and load capacity are definite value, cannot change again, therefore functional single, Applicable scope is narrower.For above-mentioned existing problems, height and the load of lowest order on market, have been there is again by adjusting the length of crane arm and connecting rod, can effectively changing under a kind of equal Parameter Conditions, as Chinese invention patent Granted publication CN101691194B, a kind of " adjustable hydraulic horizontal jack " disclosed, it is to realize the conversion between crane arm diverse location state by a set pin, specifically: when set pin is used for analog bracket and forearm, crane arm and connecting rod are in folding position state, and when set pin is during for fixing forearm and postbrachium, crane arm and connecting rod are in normal position state, it is this that by set pin, to change the operation of crane arm location status more loaded down with trivial details, and there is in actual use potential safety hazard.Chinese utility model patent Granted publication CN202358873U and for example, a kind of " with the hydraulic horizontal jack with adjustable erector arm of fastener device " disclosed, it is to realize the conversion between crane arm diverse location state by fastener device, but fastener device is arranged on bracket, both are positioned at same position height, when crane arm is during in jacking, if misoperation, be easy to encounter fastener device, cause fastener device to damage, thereby affect service life; In addition, the tooling cost of this structure is higher, installs loaded down with trivial details.
For this reason, the applicant has done actively and actv. is explored, and has finally found the technical scheme addressing the above problem, and has taked under strict secrecy provision, to the experiment proved that it is practicable.
Summary of the invention
Task of the present invention be to provide a kind of simple in structure, easy for installation, cost is low, the adjustable hydraulic jack with slide block locking structure of simple to operation, safety, reliable in action, long service life.
Task of the present invention completes like this, a kind of adjustable hydraulic jack with slide block locking structure, comprise frame, hydraulic unit, crane arm parts and press hand, described crane arm parts comprise bracket, forearm and postbrachium, described bracket comprises handle, bracket left side board, bracket right side board and bracket set pin, bracket is the one end at forearm by bracket set pin pivotal joint, the other end of forearm is by one end pivotal joint of adapter shaft and postbrachium, the other end pivotal joint of postbrachium is in frame, be characterized in: described bracket left side board offers the left socket of a side plate that Open Side Down in the bottom of short transverse, described bracket right side board offers the right socket of a side plate that Open Side Down in the bottom of short transverse, described forearm offers symmetrically left chute and right rail, in the upper end of short transverse, is fixed with a spring set pin on arranged on left and right sides side, between described bracket and described forearm, also have additional a sliding block locking device, this sliding block locking device comprises left slider, right slide block, spring and at least one piece of bearing pin, described bearing pin is located in left chute, in right rail and can move up and down, the two axial ends of bearing pin respectively with described left slider, right slide block connects, corresponding and both insertings mutually in the position of described left slider and the described left socket of side plate, corresponding and both insertings mutually in the position of described right slide block and the described right socket of side plate, one end of described spring is connected with spring set pin, the other end of spring is connected with described bearing pin.
In a specific embodiment of the present invention, the position of the described right socket of side plate is corresponding with the position of the described left socket of side plate, and is U-shaped opening.
In another specific embodiment of the present invention, the rectangular channel that described left chute, right rail are strip.
In another specific embodiment of the present invention, described forearm is fixed with respectively left slider permanent seat in the both sides of left chute Width, is formed with the slideway for sliding up and down for described left slider between a pair of left slider permanent seat within it; Described forearm is fixed with respectively right slide block permanent seat in the both sides of right rail Width, is formed with the slideway for sliding up and down for described right slide block between a pair of right slide block permanent seat within it.
In another specific embodiment of the present invention, one end of described spring is connected to the nearly medium position place of described spring set pin length direction, and the other end of spring is connected to the nearly medium position place of described bearing pin length direction.
Of the present invention, also have in a specific embodiment, between the two axial ends of described bearing pin and described left slider, right slide block, adopt fastener structure for removably connecting.
In of the present invention and then a specific embodiment, the quantity of described bearing pin is preferably two, is upper and lower interval and arranges.
More of the present invention and in a specific embodiment, the end, one end that described forearm is connected at the postbrachium with described is formed with crotch, on one end that described postbrachium is connected at the forearm with described, be provided with for hook the lock pin of joining for crotch.
The present invention is owing to having additional sliding block locking device between the bracket described and described forearm, when sliding block locking device is down pressed, drive bearing pin together toward pressing down, left slider, right slide block depart from respectively and the coordinating of the left socket of side plate on bracket left side board and the right socket of side plate on bracket right side board, at this moment bracket and forearm release, and forearm and postbrachium can be set level by crotch and coordinating of lock pin, crane arm parts are in normal expanded position state; In the time crane arm parts will being converted to folding position state from expanded position state, by spring band untie-sell axle past top offset in left and right chute, and drive springs in the left socket of side plate, the right socket of side plate to top offset together with right slide block automatically with the left slider that bearing pin connects, make bracket with forearm structure for being fixedly connected with, have advantages of simple in structure, easy for installation, cost is low, simple to operation, safety, reliable in action, long service life.
Accompanying drawing explanation
Fig. 1 is one embodiment of the invention three-dimensional exploded view.
Fig. 2 be Fig. 1 embodiment at crane arm parts the three-dimensional structure diagram in normal expanded position state.
Fig. 3 three-dimensional structure diagram during in folding position state that is Fig. 1 embodiment at crane arm parts.
In figure: 1. frame; 2. hydraulic unit; 3. crane arm parts, 31. brackets, 311. handles, 312. bracket left side boards, the left socket of 3121. side plate, 313. bracket right side boards, the right socket of 3131. side plate, 314. bracket set pins, 32. forearms, 321. left chutes, 3211. left slider permanent seats, 322. right rails, 3221. right slide block permanent seats, 323. crotches, 324. spring set pins, 33. postbrachiums, 331. lock pins, 34. adapter shafts; 4. press hand; 5. sliding block locking device, 51. left sliders, 52. bearing pins, 53. springs, 54. right slide blocks.
The specific embodiment
For the inspector that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, applicant elaborates the mode with embodiment below by reference to the accompanying drawings, but to the description of embodiment, be not all the restriction to technical solution of the present invention, any according to the present invention design, done only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.
Refer to Fig. 1 and in conjunction with Fig. 2 and Fig. 3, the present invention relates to a kind of adjustable hydraulic jack with slide block locking structure, comprise frame 1, hydraulic unit 2, crane arm parts 3 and press hand 4.Described crane arm parts 3 comprise bracket 31, forearm 32 and postbrachium 33, described bracket 31 comprises handle 311, bracket left side board 312, bracket right side board 313 and bracket set pin 314, bracket 31 is the one end at forearm 32 by bracket set pin 314 pivotal joints, the other end of forearm 32 is one end pivotal joint with postbrachium 33 by adapter shaft 34, the other end pivotal joint of postbrachium 33 is in frame 1, described bracket left side board 312 offers the left socket 3121 of a side plate that Open Side Down in the bottom of short transverse, described bracket right side board 313 offers the right socket 3131 of a side plate that Open Side Down in the bottom of short transverse, the position of the right socket 3131 of described side plate is corresponding with the position of the described left socket 3121 of side plate.Described forearm 32 offers symmetrically left chute 321 and right rail 322, in the upper end of short transverse, is fixed with a spring set pin 324 on arranged on left and right sides side.Between described bracket 31 and described forearm 32, also have additional a sliding block locking device 5, this sliding block locking device 5 comprises left slider 51, right slide block 54, spring 53 and at least one piece of bearing pin 52, described bearing pin 52 is located in left chute 321, in right rail 322 and can move up and down, the two axial ends of bearing pin 52 respectively with described left slider 51, right slide block 54 connects, corresponding and both insertings mutually in the position of described left slider 51 and the described left socket 3121 of side plate, corresponding and both insertings mutually in the position of described right slide block 54 and the described right socket 3131 of side plate, one end of described spring 53 is connected with spring set pin 324, the other end of spring 53 is connected with described bearing pin 52.Here it should be noted that: the left slider 51 described in sliding block locking device 5 or right slide block 54, iff one that uses wherein, can reach the object of locking equally, therefore also belong to the claimed scope of the technical program.
The position of the right socket 3131 of described side plate is corresponding with the position of the described left socket 3121 of side plate, and shape is unrestricted, is preferably in the present embodiment U-shaped opening.
Described left chute 321, the shape of right rail 322 are unrestricted equally, are preferably in the present embodiment the rectangular channel of strip.
Described forearm 32 is fixed with respectively left slider permanent seat 3211 in the both sides of left chute 321 Widths, is formed with the slideway playing the guiding role for sliding up and down for described left slider 51 between a pair of left slider permanent seat 3211 within it; Described forearm 32 is fixed with respectively right slide block permanent seat 3221 in the both sides of right rail 322 Widths, is formed with the slideway playing the guiding role for sliding up and down for described right slide block 54 between a pair of right slide block permanent seat 3221 within it.
Described spring 53 can be extension spring, stage clip or other return mechanism, as long as can realize the self-return of spring 53.The connection location of the two ends of this spring 53 and described spring set pin 324, bearing pin 52 is also unrestricted, in the present embodiment, one end of spring 53 is connected to the nearly medium position place of described spring set pin 324 length directions, and the other end of spring 53 is connected to the nearly medium position place of described bearing pin 52 length directions.
Connection mode between the two axial ends of described bearing pin 52 and described left slider 51, right slide block 54 is unrestricted, preferably adopts in the present embodiment fastener if the structures such as screw, bolt are for removably connecting.
The quantity of described bearing pin 52 is unrestricted, is preferably in the present embodiment two, is upper and lower interval and arranges.
The end, one end that described forearm 32 is connected at the postbrachium 33 with described is formed with crotch 323, is provided with for hooking the lock pin 331 of joining for crotch 323 on one end that described postbrachium 33 is connected at the forearm 32 with described.
Please continue to refer to Fig. 1 and in conjunction with Fig. 2 and Fig. 3, narrate principle of work of the present invention.When sliding block locking device 5 is down pressed, drive bearing pin 52 together toward pressing down, the upper end of described left slider 51, right slide block 54 departs from respectively and the coordinating of the left socket 3121 of side plate on bracket left side board 312 and the right socket 3131 of side plate on bracket right side board 313, at this moment bracket 31 and forearm 32 releases, and forearm 32 can be done anticlockwise direction rotation around adapter shaft 34, until the crotch 323 on forearm 32 catches on lock pin 331, forearm 32 and postbrachium 33 can be set level, and crane arm parts 3 are in normal expanded position state (as shown in Figure 2); Under this normal expanded position state, hydraulic jack can jacking load light, the lower automobile in chassis, as car class automobile.In the time crane arm parts will being converted to folding position state from expanded position state, first, make forearm 32 do clockwise direction rotation to upright position around adapter shaft 34, then by spring 53, drive bearing pin 52 at left chute 321, past top offset in right rail 322, and drive the left slider 51 that connects with bearing pin 52 respectively together with right slide block 54 at a pair of left slider permanent seat 3211, in slideway in the middle of right slide block permanent seat 3221 to top offset, and make left slider 51, the upper end of right slide block 54 respectively appliance for releasing single enters the left socket 3121 of side plate, in the right socket 3131 of side plate, make bracket 31 with forearm 32 both structures for being fixedly connected with, now crane arm parts 3 are in folding position state, as shown in Figure 3, at crane arm parts, under the state of folding position during lifting, automobile that can jacking load is heavier, chassis is higher, as the sports type high-mobility, multipurpose, wheeled vehicle gas cars (SUV) such as cross-country car or pick up class automobile.
In sum, technical scheme provided by the invention has made up the shortcoming in prior art, has reached goal of the invention, has embodied non-obvious technique effect.
Claims (8)
1.
a kind of adjustable hydraulic jack with slide block locking structure, comprise frame (1), hydraulic unit (2), crane arm parts (3) and press hand (4), described crane arm parts (3) comprise bracket (31), forearm (32) and postbrachium (33), described bracket (31) comprises handle (311), bracket left side board (312), bracket right side board (313) and bracket set pin (314), bracket (31) is the one end in forearm (32) by bracket set pin (314) pivotal joint, the other end of forearm (32) is one end pivotal joint with postbrachium (33) by adapter shaft (34), the other end pivotal joint of postbrachium (33) is in frame (1), it is characterized in that: described bracket left side board (312) offers the left socket of a side plate that Open Side Down (3121) in the bottom of short transverse, described bracket right side board (313) offers the right socket of a side plate that Open Side Down (3131) in the bottom of short transverse, described forearm (32) offers symmetrically left chute (321) and right rail (322), in the upper end of short transverse, is fixed with a spring set pin (324) on arranged on left and right sides side, between described bracket (31) and described forearm (32), also have additional a sliding block locking device (5), this sliding block locking device (5) comprises left slider (51), right slide block (54), spring (53) and at least one piece of bearing pin (52), described bearing pin (52) is located in left chute (321), in right rail (322) and can move up and down, the two axial ends of bearing pin (52) respectively with described left slider (51), right slide block (54) connects, corresponding and both insertings mutually in the position of described left slider (51) and the described left socket of side plate (3121), corresponding and both insertings mutually in the position of described right slide block (54) and the described right socket of side plate (3131), one end of described spring (53) is connected with spring set pin (324), the other end of spring (53) is connected with described bearing pin (52).
2.
a kind of adjustable hydraulic jack with slide block locking structure according to claim 1, the position of the right socket of side plate (3131) described in it is characterized in that is corresponding with the position of the described left socket of side plate (3121), and is U-shaped opening.
3.
a kind of adjustable hydraulic jack with slide block locking structure according to claim 1, is characterized in that described left chute (321), right rail (322) are the rectangular channel of strip.
4.
according to a kind of adjustable hydraulic jack with slide block locking structure described in claim 1 or 3, it is characterized in that described forearm (32) is fixed with respectively left slider permanent seat (3211) in the both sides of left chute (321) Width, is formed with the slideway for sliding up and down for described left slider (51) within it between a pair of left slider permanent seat (3211); Described forearm (32) is fixed with respectively right slide block permanent seat (3221) in the both sides of right rail (322) Width, is formed with the slideway for sliding up and down for described right slide block (54) between a pair of right slide block permanent seat (3221) within it.
5.
a kind of adjustable hydraulic jack with slide block locking structure according to claim 1, it is characterized in that one end of described spring (53) is connected to the nearly medium position place of described spring set pin (324) length direction, the other end of spring (53) is connected to the nearly medium position place of described bearing pin (52) length direction.
6.
a kind of adjustable hydraulic jack with slide block locking structure according to claim 1, is characterized in that adopting fastener structure for removably connecting between the two axial ends of described bearing pin (52) and described left slider (51), right slide block (54).
7.
a kind of adjustable hydraulic jack with slide block locking structure according to claim 1, is characterized in that the quantity of described bearing pin (52) is preferably two, is upper and lower interval and arranges.
8.
a kind of adjustable hydraulic jack with slide block locking structure according to claim 1, it is characterized in that the end, one end that described forearm (32) is connected at the postbrachium with described (33) is formed with crotch (323), on one end that described postbrachium (33) is connected at the forearm with described (32), be provided with for hook the lock pin (331) of joining for crotch (323).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310716654.XA CN103708377A (en) | 2013-12-23 | 2013-12-23 | Adjustable hydraulic jack with sliding block locking structure |
| CA2854388A CA2854388C (en) | 2013-12-23 | 2014-06-17 | Adjustable hydraulic jack with a slider locking structure |
| US14/331,104 US9499377B2 (en) | 2013-12-23 | 2014-07-14 | Adjustable hydraulic jack with a slider locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310716654.XA CN103708377A (en) | 2013-12-23 | 2013-12-23 | Adjustable hydraulic jack with sliding block locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103708377A true CN103708377A (en) | 2014-04-09 |
Family
ID=50401781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310716654.XA Pending CN103708377A (en) | 2013-12-23 | 2013-12-23 | Adjustable hydraulic jack with sliding block locking structure |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9499377B2 (en) |
| CN (1) | CN103708377A (en) |
| CA (1) | CA2854388C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106957024A (en) * | 2017-04-27 | 2017-07-18 | 平湖市通力机械有限公司 | A kind of single cylinder conveyer |
| CN110395676A (en) * | 2019-06-27 | 2019-11-01 | 安徽通润汽车零部件有限公司 | A kind of adjustable Horizontal jack |
| CN111533031A (en) * | 2020-04-20 | 2020-08-14 | 杭州盈江机械制造有限公司 | Low-position jack |
| CN112047259A (en) * | 2019-06-07 | 2020-12-08 | 施耐宝公司 | Horizontal jack locking assembly |
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| CN106957024A (en) * | 2017-04-27 | 2017-07-18 | 平湖市通力机械有限公司 | A kind of single cylinder conveyer |
| CN112047259A (en) * | 2019-06-07 | 2020-12-08 | 施耐宝公司 | Horizontal jack locking assembly |
| CN110395676A (en) * | 2019-06-27 | 2019-11-01 | 安徽通润汽车零部件有限公司 | A kind of adjustable Horizontal jack |
| CN111533031A (en) * | 2020-04-20 | 2020-08-14 | 杭州盈江机械制造有限公司 | Low-position jack |
Also Published As
| Publication number | Publication date |
|---|---|
| US20150175394A1 (en) | 2015-06-25 |
| CA2854388A1 (en) | 2015-06-23 |
| US9499377B2 (en) | 2016-11-22 |
| CA2854388C (en) | 2016-09-13 |
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Application publication date: 20140409 |